Perl one-liner for adding newlines to HTML

When the rich editor puts all HTML in one line, and I want to edit it, I could always use the tidy utility, however it does too much. All I want is a newline here and there to make the whole thing accessible. So this simple one-liner does the job: perl -pe 's/( \/(?:p h\d div tr td table ul ol li) )/"$1\n"/ge' Not perfect, [...]